Giant Hogweed (Heracleum mantegazzianum) is a highly invasive, large biennial or perennial herb. Its phototoxic sap causes severe skin burns and blisters upon contact and
Above information is sourced from Wikipedia
Sunlight
Thrives in full sun, tolerates partial shade.
Watering
Prefers consistently moist soil; often found in damp areas.
Soil
Moist, well-drained, fertile soil, often loamy or clayey.
Temperature
Hardy in temperate zones, tolerating a wide range.
Habitat
Outdoor
Fertilizer
Not required; fertilization encourages invasive growth.
Thrives in full sun, tolerates partial shade.
Prefers consistently moist soil; often found in damp areas.
Moist, well-drained, fertile soil, often loamy or clayey.
Hardy in temperate zones, tolerating a wide range.
Outdoor
Not required; fertilization encourages invasive growth.
Plant Type
Herb
Plant Category
Foliage
Plant Place Type
Ground
Plant Environment
Outdoor
Lifespan
Biennials
Plant Height
2-5 m
Spread
1-2 m
Growth Rate
Rapid
Dormancy
Winter
Leaf Color
Green
Leaf Type
Pinnately compound, deeply lobed
Flower Size
20-50 cm
Optimal Sunlight Lux
60000
Weed Status
Yes
Toxic for humans
Yes
Rating: 10/5
Toxic for pets
Yes
Rating: 10/5
Edible
No
The sap contains furanocoumarins, which cause severe photodermatitis (blistering, burns, scarring) when skin is exposed to both the sap and sunlight. Eye contact can lead to temporary or permanent blindness.
